Description
Overview
The Eaton Bussmann 170M5395 is a Class aR rated high speed square body semiconductor protection fuse with a 550 A current rating and 1250 V AC voltage rating, part of the trusted Bussmann 170M Series. Manufactured to IEC 60269-4, this fuse provides extremely fast clearing times to protect thyristors, SCRs, diodes, IGBTs, and other semiconductor devices from potentially destructive overcurrent events. With a 200 kA breaking capacity and CSA/UL listing alongside CE and RoHS compliance, it is engineered for high-reliability industrial and power electronics environments across India.
Key Features
- 550 A Current Rating — handles high continuous load currents in demanding semiconductor drive applications
- 1250 V AC Rated Voltage — suitable for medium voltage DC bus and high voltage power conversion systems
- 200 kA Breaking Capacity — exceptional fault clearing performance for high fault-current industrial installations
- Class aR Rating — purpose-built for semiconductor protection with ultrafast response to protect SCRs, diodes, and IGBTs
- IEC 60269-4 Compliant — internationally recognised standard for high speed semiconductor fuses
- 2BKN/75 Square Body Format — standardised form factor with bolt-in connections for straightforward panel integration and replacement
- No Fuse Indicator — compact, indicator-free design suited for applications with external monitoring or where panel space is limited
- CSA/UL Listed & CE Marked — meets international certification requirements for global project compliance
- RoHS Compliant — meets EU environmental directives, supporting green manufacturing initiatives
- Bussmann 170M Series Reliability — field-proven semiconductor fuse platform trusted in power electronics worldwide
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 170M5395 |
| Series | Bussmann 170M |
| Amperage Rating | 550 A |
| Rated Voltage AC | 1250 V |
| Breaking Capacity | 200 kA |
| Interrupt Rating | 200 kA |
| Fuse Class | Class aR |
| Construction | Square body 2BKN/75 format with bolt-in connections |
| Fuse Indicator | None |
| Standard | IEC 60269-4 |
| Compliances | CE Marked, RoHS Compliant |
| Certifications | IEC Rated, CSA/UL Listed |
| Application | Semiconductor protection, DC common bus, DC drives, power converters, rectifiers, VFDs, soft starters, thyristor stacks |
Applications & Selection Guide
The Eaton Bussmann 170M5395 is the right choice for engineers specifying semiconductor protection in high-current, high-voltage power electronics systems. The 550 A / 1250 V AC rating makes it well matched to medium and high voltage DC bus assemblies, large drive cabinets, and industrial rectifier panels where upstream breakers alone cannot provide the speed of response needed to protect SCRs, diodes, and thyristors during fault conditions.
The Class aR rating is specifically defined for semiconductor fuse applications — unlike general purpose gG fuses, aR fuses are calibrated to open extremely rapidly under overcurrent conditions to prevent thermal damage to semiconductor junctions. This makes the 170M5395 particularly critical in applications such as variable frequency drives (VFDs), soft starters, DC motor drives, thyristor stacks, and IGBT-based power converters where component replacement costs far exceed the cost of the fuse itself.
Across India, this fuse is widely specified in heavy industry sectors including steel plants, paper mills, chemical process plants, water treatment facilities, textile manufacturing in Tamil Nadu and Maharashtra, and renewable energy power conversion systems. Indian panel builders and OEMs working to IEC standards will find the 2BKN/75 bolt-in square body format directly compatible with standard Eaton and third-party fuse holders and bus bar assemblies. Shansen Enterprises in Coimbatore stocks and supplies Eaton Bussmann 170M Series fuses for immediate dispatch to customers across India.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — genuine products with full manufacturer traceability
- 100% genuine Eaton Bussmann stock supplied with warranty
- Pan-India delivery to all major cities and industrial zones
- WhatsApp technical support for fuse selection, sizing, and replacement queries
- Competitive bulk pricing available for panel builders, OEMs, and EPC contractors
Compatible Products & Accessories
- Eaton Bussmann 170M Series fuse holders and mounting bases (2BKN/75 compatible)
- Eaton Bussmann 170M Series Class aR semiconductor fuses in other current ratings (e.g. 400 A, 500 A, 630 A, 700 A)
- Eaton Bussmann fuse blocks and bus bar connectors for square body fuses
- Eaton DIN rail fuse holders suitable for panel integration
- Semiconductor protection fuse monitoring and blown fuse indication modules
- Eaton Bussmann 170M Series fuses at 690 V, 1000 V, and 1500 V voltage ratings for alternate voltage specifications
Frequently Asked Questions
What does the Class aR rating mean for the Eaton Bussmann 170M5395?
Class aR (current limiting, semiconductor protection range) indicates that this fuse is specifically designed for protecting semiconductor devices such as SCRs, diodes, thyristors, and IGBTs. Unlike general purpose gG fuses, Class aR fuses respond extremely rapidly to overcurrents, clearing the fault before the semiconductor junction reaches its thermal damage threshold. The 170M5395 should always be used where IEC 60269-4 Class aR protection is called out in the circuit design or equipment specification.
Is the 170M5395 suitable for DC bus applications in VFD and drive cabinets?
Yes. The Eaton Bussmann 170M5395 is explicitly rated and designed for DC common bus, DC drives, and VFD semiconductor protection applications. Its 1250 V AC rating and 200 kA breaking capacity make it appropriate for high voltage DC bus configurations commonly found in large industrial drive systems. Always verify the actual DC voltage and prospective fault current against the fuse’s rated parameters before installation.
What fuse holder or mounting base is compatible with the 170M5395?
The 170M5395 uses the 2BKN/75 square body format with bolt-in connections. It is compatible with Eaton Bussmann fuse holders, mounting bases, and bus bar assemblies designed for the 170M Series 2BKN/75 square body configuration. Contact Shansen Enterprises in Coimbatore to confirm the correct holder and hardware for your specific panel design.
Does the 170M5395 come with a fuse blown indicator?
No. The Eaton Bussmann 170M5395 does not include an integrated fuse indicator. If blown fuse indication is required in your panel or system, you can use external fuse monitoring modules or indicator accessories compatible with the 170M Series mounting hardware. Shansen Enterprises can advise on suitable indicator solutions for your application.
What certifications does the Eaton Bussmann 170M5395 carry?
The 170M5395 is IEC Rated to IEC 60269-4, CSA/UL Listed, CE Marked, and RoHS Compliant. These certifications make it suitable for use in projects requiring international compliance, including installations in India that must meet IEC standards, as well as export projects requiring UL or CE documentation.
How do I order the Eaton Bussmann 170M5395 from Shansen Enterprises?
You can request a quote for the Eaton Bussmann 170M5395 directly from Shansen Enterprises by clicking the WhatsApp button on this page or sending an email inquiry using the contact form. Please share your required quantity, delivery location, and any associated project details. Shansen Enterprises supplies genuine Eaton Bussmann products with pan-India delivery from our base in Coimbatore, Tamil Nadu. Bulk orders from panel builders and OEMs are welcome — ask about volume pricing.
